Energy Transfer LP, together with its subsidiaries, provides energy-related services in the United States. It operates through Intrastate Transportation and Storage; Interstate Transportation and Storage; Midstream; Natural Gas Liquid (NGL) and Refined Products Transportation and Services; Crude Oil Transportation and Services; Investment in Sunoco LP; Investment in USA Compression Partners, LP (USAC); and All Other segments. The company owns and operates natural gas transportation pipelines and storage facilities; and approximately 12,200 miles of intrastate natural gas transportation pipelines and 20,090 miles of interstate natural gas pipelines. It also sells natural gas to electric utilities, independent power plants, local distribution and other marketing companies, and industrial end-users.